This API definition can be used to generate API documentation using Swagger UI or ReDoc, as well as generate SDKs using APIMATIC, and monitoring using Runscope or API Science. If you come across any other API definitions for CKAN, or any interesting documentation and other tools--please let me know, I want to keep aggregating CKAN related solutions.

Open source tools that have APIs, and have open API definitions like this are the future. These are the tools that companies, institutions, organizations, and government agencies should be putting to work in their operations because it helps reduce costs, but also having an API that uses common API specifications means it will speak the same language as other important tools and services, increasing the size of the toolbox available for implementatioperations your API operatons.